c# - WPF ListBoxItem does not stretch to the maximum width in wrappanel -


i trying make listbox contains custom control , wrap automic.my listbox xaml code below.i need 3 items in each row , stretch maximum width.it wrap next row if items more three. need custom control stretch on in horizontal not both side. how can that?

<scrollviewer horizontalscrollbarvisibility="disabled">             <listbox>                 <listbox.template>                     <controltemplate targettype="{x:type listbox}">                         <wrappanel orientation="horizontal" isitemshost="true" />                     </controltemplate>                 </listbox.template>                  <listboxitem>                     <controls:transduceritem  margin="5,10"/>                 </listboxitem>                  <listboxitem>                     <controls:transduceritem  margin="5,10"/>                 </listboxitem>                   <listboxitem>                     <controls:transduceritem  margin="5,10"/>                 </listboxitem>                  <listboxitem>                     <controls:transduceritem margin="5,10" />                 </listboxitem>                  <listboxitem>                     <controls:transduceritem  width="200" margin="5,10" />                 </listboxitem>             </listbox>

use uniformgrid 3 columns itemspanel:

<listbox>     <listbox.itemspanel>         <itemspaneltemplate>             <uniformgrid columns="3" verticalalignment="top"/>         </itemspaneltemplate>     </listbox.itemspanel>     ... </listbox>

you might use transduceritem control in itemtemplate of listbox

<listbox.itemtemplate>     <datatemplate>         <controls:transduceritem  margin="5,10"/>       </datatemplate> </listbox.itemtemplate>

and bind listbox's itemssource property collection of data items hold each transduceritem's data:

<listbox itemssource="{binding tranducerdata}">     ... </listbox>

take @ data templating overview article on msdn.


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